Inflation-valve.



No. 793,937. PATENTEB JULY ll?, 1905, J'. E. KELLER,`JR. INPLATIN VALVE,

MPLIGATION Hmm AUG. 2o. 19041.

if; Inventor,

ttomegs illiyrirtiu ttrrtrint ltjnftented July fl, i905?,

lltnirisn'r llllrrncisr SPECIFCATJUN forming part of Letters Patent No. 793,93*?, dated July t, 1905.

Application filed August 20, 1904. Scrinl No 221,569.

lite it known th:i.t l, .lionN Es'rnN li'nmlnn, dix, :L citizen ol the United ltntes, rosiding'et llitchlicld, in theconnty olljiteh ield :Lnd tltnte ol tlonnecticut, h:Lve invented :L new :Lnd useiul lfLilhttion-Vulve, of which the Following' is :L spccilicntion.

'lhis invention relzLtes to in l'l:,Lti 'n1-v:Llves, :Lnd is lnn'ticnlnrlydesigned lor use in connection with tires lor vehiclesu 'llrhe object ot the invention is to lfncilitnte the reinovnl oli` the tubuhLr heed ol the device, so :is to give convenient :Leeess to the vulve mechanism.

,llt is :tlso designed to provide l'or mcchnnie :Llly seating the vulve :L'lter inllntion, so ns to insure :Ln airtight closure oi: snid valve, und in this connection it is designed to provide l'or elliectunlly holding` the vnlve :tgninst rotation during the operation olAl niechnnienlly sentine` the snnie.

'll/Vith these :Lnd other objects in View the present invention consists in the conibinntion :Lnd arrangement of perts, :Ls will be herein- :L'lter more lfully described, shown in the :tcemnpnnying' drnwing's, :Lnd pnrticulnrly pointed out in the:Lppendedclnin1s, it beiner understood thut changes in the lorn'i, prmiortion, size, :Lnd niinor detnils muy be nuLde within the scope ol the elnin'is withoutdepnrtine l'roln the spirit or sncrilieingg' :Lny olI the :Ldvuntnees el,E the invention.

ln the :Lcconipnnyine'drawings, liie'ure .l is :L loneitudinul sectionnl view ol the inllntion vulve colistrueted in :Lccordmiee with the present invention. ,liigz .2 is :L cross-sectional view on the line 2 2 ol Fig'. l. Fig'. 3 is :tdetnil .secu tionnl perspective view of the hond rneniber rennovedn liig. 4l: is :L detnil view ol the tiroehnnpine; wzLsher.

Like chnrecters ot' reference desigrntte corresponding' pnrts in cnch end every ligure ol thc (,lrnwings.

rlihc present velvc includes n, tubulnr stem l, which is el eq unl externnl diameter throughout its length :Lnd externnlly screw-thrended Vlor the reception oi. suitable rini-en;':.Lg-ingI nuts to clump the tubnlnr stern upon :L rini. rlhc outer end of the stein is counterborml, :is e112, und seid outer extremity is provided with dinnietrienlly opposite longitudinal notches or recesses 3. At the inner end ol the cminterbored portion the bore ol the stern is slightly col'istricted, :Ls :Lt si., :Lnd the renuLimler ol the bore ol the stem is still l'nrther emistricted, :Ls :Lt 5, so :Ls to incrense the thickness ol the wells ol the stein throughout thog'reziter length thereof. Vll'ithin the constrictcd portion el; ol the stein 'is :Ln open-ended tube (3, which projects beyond the open outer end ol the stern :Lnd is provided with :Ln internnnlinte :Lnnulnr lgroove 7 lior the reception olf :L pnekiiig-ring 8, which tits within the eounterbere 2 :Lnd eng':i g'es the bottom thereof". The top ol this tube is provided with :L series ol rndinl notches 9, which intersect :Lt the :Lxiul line o l. the tube, :Lnd the bore olE the lutter terminntes :Lt the bottoni oli these notches.

Between the outer end oi the tube (3 :Lnd the connterbore 2 oli the sten] there is :Ln :Lnnuhir spnce in which is litted the lower end oli :Ln open-einled tubular hond l0, with its outer end provided with :Ln internally :Lnd externally th rended nipple il Ior connection with :L piunp. '.lhis hond is provided with externnl u'ojeetions 12, which lit in the notches or recesses 3 in the outer end ol tliestein, so :Ls to prevent rotntion olE the tubular heed, there being' :1y retuininecup i3, internally threndcd to lit the thi-ended stein :nid pmvided :Lt its outer end with :Ln in \v:Lrdly-directed :Lnnuler llnngc lll to en uge the outer ends olE the projections V12, :ind thereby irnlly hold the hend upon the stein. ity removing;l the retaining-cup the hend muy be quietly slipped lroln the stem without unscrewing' tl suine, which is :t very iinportniit Vleeture olf the present invention, :is it uniten rizLlly lncilitntes the detnclnnent oll the hend. About niidwny between the ends olE the hond there is :Ln inner :Lnrndnr enhugeinent l5, the bore ot which is tnpered upwardly, so :ts to torni :L tnpered or substnntinllyeonieul vulven sont.

itlVithin the tnbulztr hend l() is :L vulve meeh- :tnisnn consistingl ol" :L thi-ended stein 1G, which is provided ne:Lr its lower end with n substantizLlly conicnl enlargement 17, eonstiti'iting' the vulve proper :Lnd inelosed within :L rubber or other suitnble pnchiinr Y18, which is screwed down over the stein :nid snugly engaged with IOO tually hold the head in place.

s conical valve portion 17. A llat guide or wing 1) depends Vfrom the lower end of l 17 and extends diametrically across latter, with its lower end working in cornding notches 9 of the tube 6 as a guide he valve,the lower extremity of the guidebeing provided with an inverted substani if-shaped notch or recess 20. Normally when the tire is inflated the valve is held at iis outer limit by the pressure of the air and thereby seated to prevent escape et' the air, it of course being understood that the notches i) and the guide-wing 19 are so proportioned that said guide-wing remains within a pair of notches when the valve is at its outer limit, with a space between the bottom ot' the wing and the bottoms of the notches sullicient to permit of a downward movement ot the valve to open thevvalve port or seat d uring the inllation ol the tire. lVhen the guide-wing 19 is within one pair of notches 9, the V-shaped notch or recess 2O is in alinement with the inner ends ot' the other pair of notches 9, so as to prevent obstructing the latter, and thereby' to permitol theincoming air passing' inwardly through the unobstructed notches 9 and into the tube 6.

Then the valve-seat and the valve becomes worn, the pressure of the air within the tire is not always suliicient to properly seat the valve and prevent leakage, and to overcome this disadvantage 1 propose to mechanically maintain the valve seated and accomplish this object througll the medium ot' a closure for the outer end of the tubular head 10, which consists ol a cap 21, having' a milled outer edge and designed to engage with the outer end olf the head and provided with an internallythreaded tubular stem 22 to fit the threaded valve-stem 16, whereby when the cap 21 engages the head 10 and the cap is further rotated the valve will be drawn outwardly into snug engagement with the seat 15, thereby to ellcct a mechanical seating' of the valve independently of the air-pressure. When it is desired to inflate the tire, the cap 21 is backed oill from the head 10 and then pushed inwardly, so as to positively unseat the valve, and thereby prevent sticking thereotl during the operation of inilating the tire. After the cap has been pressed inwardly and the valve unseated it is entirely removed from the stem, and then the pump-coupling is engaged with the nipple 11., either with the interior or the exterior thereof, according to the construction of the coupling.

From the Aforegoing description it will be understood that the present construction obviates a threaded connection between the tubular head 10 and the stem and in lieu thereo'l provides a slip-joint to permit o1' the ready removal of the head for access to the valve whenever it is desired to repair or replace the same, the retaining-cap 13 operating to ellec- By reason olA the guide-wing 19 litting in corresponding notches f) in the tube 6 the valve and its stem are held against rotation during the application and removal of the cap- 21. Moreover, thc head l() is drawn down against the packing-ring 8 by the adjustment of the retainingcap 13, thereby to insure an air-tight joint between the tube 6 and the stem 1. By employing a guide-tube 6 of considerable length with a packing-washer located substantially midway of its ends a rigid support of the tube within the stem is insured, so as to maintain the notches 9 in longitudinal alinemcnt with the valve-stem, and thus insure a proper working of the valve without liability of the guidewing 19 being wedged within the notches.

The tubular stem or casing ot the present valve extends through the inner and outer tubes ol the tire and also through the rim in the usual manner and is provided at its inner end with a head 26 to engage the interior of the inner tube with a nut 27, engaging' the threaded portion ot' the stem so as to clamp the inner tube between the head 26 and the nut. interposed between the nut and the inner tube is a clamping-washer 2S et elongated or elliptical Yform with its opening flattened at diametrically opposite points, as indicated at 29, to engage the corresponding llat laces 30 of the stem creasing 1, so as to prevent rotation of the washer when tightening the nut. rlhis washer is substantially l'lat throughout its center, and at the outer edge ot' the llat portion is an annular rib 31, forming a cup slightly greater in diameter than the head 26 of the stern, so as to etlfectually clamp the inner tube between the head and the washer. rlhis washer is disposed longitudinally ot' the tire, and is therefore longitudinally bowed or devllected Vfrom its flattened central portion to its respective ends, and said ends or terminals are provided with edge ribs or 'flanges 32 upon the outer side of the washer, so as to impinge against the outer tube, and thereby clamp the latter against the rim 25.

The stem or casing 1 may be clamped upon the rim in any suitable mannergas, lor instance, by means of a nut 33, embracing the stem, with a washer 34C interposed between the nut and the rim, said washer having its opening provided with llattened portions to engage the l'lattened portions of the stem, and thereby prevent rotation of the washer upon the stem.

A dust-cap 3G embraces the outer end of the stem and is internally threaded to lit the threaded stem, there being a washer similar to the washer 34 interposed between the dustcap and the nut Having thus described the invention, what is claimed is 1. An inflation-valve comprising a tubular stem provided with a smooth counterbore, a guide-tube litted within the counterbore and provided with a packing-ring engaging the IOO veaoev hachY olf the connterhore, an exterlntllyeinooth valve-telve enihraciiig the guide-tithe within the conn terliore of the stein and engaging' the paoldng' ring', valve nieclntnisin within the val ve-tnl mand a retaining-rap detael lal lv conmnzting' the valve-tlll'ie with the stein.

il. illn i|rllation-valve col'nprising a tnhnlar Stein provided with a smooth conrrterhore1 a g'nide--tnhe litted within the connterhoi'e and provided with a inLcl iiig'-i'ing' ei'lg'agiiig' the hach; ol the comiterhorm an externally-snlootli valve-tube enihracii'ig' the g'nide-tnhe within the (aninterhore of the stem and engaging' the packing-ring', valve mechanism within the valve-telai9 and means to detachahlyY connect, the valve-tnl e with the stein.

L /lln inllation-if'alve comprising' a tnlndar stern provided with a smooth connterhore and having' terminal notches in the co'lniterhored portion, a g'nide-tnhe iitted within the connterhore ol the stem7 a valve-tulle emhracing' the g'nide-tnhe and provided with external projeetirnfis litting' in the notches o the etenn valve n'ieehanism within the valve-telic, and a retaining-cap emln'acillgthe valve-tullio and detacl'iahlv crnineeting' the saine to the stem.

la illn inllatioirvalve comprising' an externallv-tln'innled stein provided in its onter end with a connterlmre and having' said counter hored portion terminally notched, a g'nidetnhe fitted within the connterhored portion ol the stem, a valve-tube enihracing' the g'nidetnhe wi thin the connterhoro and provided with projectioi'ni engaging' the notches of the stem, valve nieclianism within the valve-tulle, and a retaining-cap internally threaded for eng'ag'einent with the threads oil. the stem and provided with an inner annular Ilang'e en1- ln'acing' the valve-tube and engaging the projections thereof to retain the saine in the nr'rtehos olI the stein.

/lln inllatirnrvalve comprising' a tnhnlar stein. having' a colniterln)ren a g'nide-tn be litted within the connterhore and projected i ntothe stein, a Valvetnhe embracing' the gnide-tnhe within the eoliinterl'iore valve mechanism within the valve-tnhe7 and a retainingcap enr hraeing' the valve-tube and detachahlgr7 eng'ag'- ing' the stern to retain the valve-tulle n pon the etenin l?. /tn inlation-valve comprisii'ig' a tnlnilar laten l, having' a connterhore, a g'nide-tnhe litted within the coimterhore and proiected into the stein.A a paehing'-ring' ernln'acii'ig' the tnhe and eng'ag'in the hach ot the connterhore, a valve tnhe ei'nhracing the guide-tube within the eonnterhore and hearilig' against the packing'- rii'igz, valve mechanism within the mlve-tnhe, and a retaiiiing'-cap einhracing' theI vz'tlve-tnhe and dntaeliahljyy engaging' the steinn ii'. ./lrn intlatioirvalve crnnprising' a tnhnlar stein lowing' a con nterhere, a guide-tube litted in the connterhored portion ol the stein and provided at its outer end with snhatantialliT radial notchea in conininnieation with the here ot the tnhe, a valvotn he einln'aciiig' the g'n idetnhe within theeonnterhore and provided with an inner valve-seat, a valve cooperating' with the neat and provided with ag'nde-hlade working' in corresi'iondng' notches ol the valvetulle, said hlado ln'xing' provided with an opening' Ytor reg'istratiol'i with the other i'iotches olf the g'1,|idetnhe1 and a retaili1ing=cap emhracing' the val\fe-tnhe and detachahly eiigag'il'ig the stein. i

55. ./lln in ilatioirvalve comprising' a tnhnlar stem, a g'nide-tnhe litted therein and proviifled in its onter ond with substantially radial notches coininnnicating with the here thereol, a valve-tulle embracing' the notched end ol the g'nido-tnhe and provided with an internal valve-seat, and a valve coperating` with the seatand provided with a gnide-hlzule working' in cm'responding' notches ol the g'nide tulle and provided with an opening' lor registration with other notches ot the guide-tube.

Sl. illn inilation-valve comprising' a tnhnlar stein, a g'nide-tnhe fitted within the stein, a valve-tnhe eniln'acing'the g'n'ide-tnhe and pro iected beyond the stem and also ijn'ovided with an iiiteriial valve-Seat, a valve cooperating' with the seat and provided at one side with a g'nide engaging' the gnide-tnhe and at its opposite side with a threaded stern, and a valve-retainer including' an internally-threaded Stein receiving' the threaded stem ol the valve and having' a head to engage the outer end ol the valve-tube.

10. An inllation-valve comprising' a tnhnlar stein having' a connterhoro in `i ts outer end with said connterhored portionterminallynotched, a g'nide-tuhe l'itted within the eminterhore and rn'ojected into the interior ol the stem., the outer end ol the guide-tube being' provided with Sets ol substantially .radial notches intersecting' the here thereof.) a packing-ring' en'ihracing the tuhe and el'ig'aging' the hach ol'I the coni'iterhore, a valve-tribe embracing' the g'n id e-tnhe within the con nterhore and engag'- ing' the pachi1ig'rin, said Valve-tube having' an internal valvesseat and external proiections Iitting' in the notches of the stern1 a Valve cooperating' with the valve-seat and provided at its inner side with a guide-wing' working' in correspoi'iding' notches ol the g'nide--tnhe and provided in its onterend with a notch l'or registration with some ol" the other notches, said valve having' a threaded stem ijn'ojected at the opposite side thereol', a val voretainer having' an internally-tln'eaded stem oiigznrg'iiig' the threaded sten] of the valve and provided with a head engaging' the onter end ol the if'alve-tnhe7 and a.retaining-capdetachn ahljv einhracil'ig' the .atenl and provided with an inner annnlai.' llang'o engaging' the projections o i the val ve-tuhe to hold the same within the notches olf the tnhnlar stein.

lll ln inNation-valve confiprising' an externally threaded tnhnlar stein having' enter willy-flattened portioiis and a head at its in- TOO 4: mager ner end, valve mechanism within the tubular the annular rib, a nut embracing` the stein at stem, an elongated washer havin@l an opening the outer side of the washer, and rim-engagto receive the stem with Said openingI provided ing' means earred by the stein. Y with flattened portions to engage the flattened ln testimony that 1 claim the foregoing as 5 portions of the stemi the central portion of my own l have hereto allixed my signatur-ein 15 the washer being flat and the flattened portion the presence of two witnesses.

having a peripheral rib projected toward the JOHN ES'l`E\T KELLER JHL head ol the stem, and the ends of the washer lVitneSseS: being delleeted away from the head and pro- JOHN L. Mownn,

IO vided with terminal transverse ribs opposite STEWART lV. SMITH 

